There should only be the common WASD/Arrow Keys and ENTER really. I don't think there's any other keys really needed.
Ah, I see, there's also keys for the text to advance automatically or to skip text, and to so I hoped there was more.One more thing, if you say 'not now' to the student whose house is haunted, can you not start that event later? I think it's Laura?
You cannot, if you say not now she gets a bad end for her.